The Mars corporation announced it has extended its partnership with Joe Gibbs Racing in a multi-year role as primary sponsor of Kyle Busch’s No. 18 Toyota Camry.

That means the M&Ms brand – which joined up with Busch and Gibbs in 2008 – isn’t going anywhere, including to a potential new fourth entry for Carl Edwards, which has been widely speculated.

“Being the M&M’s driver and representing Mars on and off the track has been one of the proudest accomplishments in my racing career,” Busch said in a release, via NASCAR.com.

Added NASCAR Chief Operating Officer Brent Dewar, also via NASCAR.com: “Mars is one of the most recognizable brands in NASCAR and is among the best-in-class marketers in all of sports. More than two decades after entering NASCAR, Mars continues to help make race day more fun and we couldn’t be more proud to see the company continue to re-invest in our sport.”

Mars entered NASCAR as a team sponsor in 1990 and stepped up to primary sponsorship beginning in 1999 with Ernie Irvan.

The heavy yellow presence on the Gibbs cars continues for 2015 with Busch’s No. 18 and Matt Kenseth’s No. 20 both seeing an uptick from their primary sponsors. M&Ms is on board the No. 18 the majority of the races and with the Home Depot pulling out from Kenseth, Dollar General is the featured primary on the No. 20.

It’s known as “Carburetor Day” – or in its simplest term, just “Carb Day.”

But the final day of on-track action Friday at Indianapolis Motor Speedway before Sunday’s 102nd Running of the Indianapolis 500 is so much more.

Especially on NBCSN, which will have wall-to-wall live coverage starting Friday morning.

Here’s how Friday’s schedule breaks down:

11 a.m. ET: Carb Day kicks off with the final practice for Sunday’s Indy 500. The session will last one hour in length.

12 p.m. ET: We’re going racing! Strap in for coverage of the Indy Lights’ Freedom 100 on the famous Brickyard.

1:30 p.m. ET: We’ll have coverage of the annual IndyCar Pit Stop Challenge. Which teams have the best – and most importantly, fastest and accurate – pit crews? Team Penske has won 10 of the last 12, including the last two years edging out Schmidt Peterson Motorsports each time. Who can potentially beat them this year?

3:30 p.m. ET: We’ll have our annual NASCAR America Motorsports Special. Among segments included in the 90-minute show will be:1) 2016 Indy 500 winner Alexander Rossi will discuss how it used to upset him when people suggested he “backed into” his big win and how he didn’t really feel vindicated until he qualified on the front row for last year’s race.
2) Defending 500 winner Takuma Sato, the first Japanese driver to ever win at Indianapolis, discusses the impact of his big win personally and professionally, particularly back in his native land.
3) An essay by Robin Miller on Stefan Wilson giving up his ride last year to allow Fernando Alonso to race for Andretti Autosport.
4) An essay by Nate Ryan on Danica Patrick as she looks to compete in her final Indy 500 before retiring from professional racing.